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7-String Guitar Tuning

A 7-string guitar adds a low B below standard tuning; the other six strings are tuned E A D G B E as usual.

Sound is analysed on your device; nothing is recorded or uploaded.

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Press Start and allow the microphone.

Tap a string to hear its note and tune only that string. Switch back to Auto to let the tuner pick the string.

Tuning

Mode

Reference pitch (A4)

440 Hz

Pitch trace (centre line = in tune, ±50 cents)

7-String Guitar Tuning: string notes and how to tune from standard

Typical styles: Metal, jazz and extended-range playing.

String	Note	Frequency	Standard	Change
7	B1	61.74 Hz	–	extra string
6	E2	82.41 Hz	E2	no change
5	A2	110.00 Hz	A2	no change
4	D3	146.83 Hz	D3	no change
3	G3	196.00 Hz	G3	no change
2	B3	246.94 Hz	B3	no change
1	E4	329.63 Hz	E4	no change

Guitar tunings

Every tuning the tuner knows, lowest string first, with each string’s frequency at A4 = 440 Hz.

Tuning	Notes	Frequencies (Hz)
Standard	E2 A2 D3 G3 B3 E4	82.41 · 110.00 · 146.83 · 196.00 · 246.94 · 329.63
Drop D	D2 A2 D3 G3 B3 E4	73.42 · 110.00 · 146.83 · 196.00 · 246.94 · 329.63
Half step down (E♭)	E♭2 A♭2 D♭3 G♭3 B♭3 E♭4	77.78 · 103.83 · 138.59 · 185.00 · 233.08 · 311.13
D standard (full step down)	D2 G2 C3 F3 A3 D4	73.42 · 98.00 · 130.81 · 174.61 · 220.00 · 293.66
Drop C	C2 G2 C3 F3 A3 D4	65.41 · 98.00 · 130.81 · 174.61 · 220.00 · 293.66
C standard	C2 F2 B♭2 E♭3 G3 C4	65.41 · 87.31 · 116.54 · 155.56 · 196.00 · 261.63
Open D	D2 A2 D3 F♯3 A3 D4	73.42 · 110.00 · 146.83 · 185.00 · 220.00 · 293.66
Open D minor (DADFAD)	D2 A2 D3 F3 A3 D4	73.42 · 110.00 · 146.83 · 174.61 · 220.00 · 293.66
Open G	D2 G2 D3 G3 B3 D4	73.42 · 98.00 · 146.83 · 196.00 · 246.94 · 293.66
Open E	E2 B2 E3 G♯3 B3 E4	82.41 · 123.47 · 164.81 · 207.65 · 246.94 · 329.63
Open C	C2 G2 C3 G3 C4 E4	65.41 · 98.00 · 130.81 · 196.00 · 261.63 · 329.63
DADGAD	D2 A2 D3 G3 A3 D4	73.42 · 110.00 · 146.83 · 196.00 · 220.00 · 293.66
Drop B	B1 F♯2 B2 E3 G♯3 C♯4	61.74 · 92.50 · 123.47 · 164.81 · 207.65 · 277.18
7-string standard	B1 E2 A2 D3 G3 B3 E4	61.74 · 82.41 · 110.00 · 146.83 · 196.00 · 246.94 · 329.63

More tuners

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Guitar tunings

Drop D Half step down (E♭) D standard (full step down) Drop C C standard Open D Open D minor (DADFAD) Open G Open E Open C DADGAD Drop B 7-string standard

Practising after tuning? Keep time with the online metronome.

Version 1.0

About the 7-String Guitar Tuning

A 7-string guitar adds a low B below standard tuning; the other six strings are tuned E A D G B E as usual.

How to use it

1 Press Start tuner and allow the microphone.
2 Pick your tuning, or keep Standard (E A D G B E).
3 Pluck one open string and let it ring: the tuner shows the string and a needle.
4 Tighten the string if it says tune up, loosen it if it says tune down, until the needle sits in the green and the string gets a tick.

Frequently asked questions

What are the notes of 7-String Guitar tuning?

From the 7th (thickest) string to the 1st: B E A D G B E. It adds a low string below standard tuning.

What is 7-String Guitar tuning used for?

Metal, jazz and extended-range playing.

Is my audio recorded or uploaded?

No. The tuner analyses the sound from your microphone in your browser, a few times a second, and throws it away. Nothing is recorded, saved or sent to a server.

Why does the tuner jump between notes?

Usually because more than one string is ringing, the room is noisy, or the note has faded. Mute the other strings with your fretting hand, pluck firmly, and read the needle while the note is still strong. Moving closer to the microphone helps on laptops.

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